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// Copyright (c) 2019, 2020 Maxime Soulé
// All rights reserved.
//
// This source code is licensed under the BSD-style license found in the
// LICENSE file in the root directory of this source tree.
package color_test
import (
"os"
"strings"
"testing"
"github.com/maxatome/go-testdeep/internal/color"
"github.com/maxatome/go-testdeep/internal/test"
)
func TestColor(t *testing.T) {
defer color.SaveState()()
// off
for _, flag := range []string{"off", "xxbad"} {
os.Setenv("TESTDEEP_COLOR", flag)
os.Setenv("MY_TEST_COLOR", "green")
light, bold, off := color.FromEnv("MY_TEST_COLOR", "red")
test.EqualStr(t, light, "")
test.EqualStr(t, bold, "")
test.EqualStr(t, off, "")
var b strings.Builder
color.AppendTestNameOn(&b)
test.EqualInt(t, b.Len(), 0)
color.AppendTestNameOff(&b)
test.EqualInt(t, b.Len(), 0)
}
// on
colorTestNameOnSave, colorTestNameOffSave := color.TestNameOn, color.TestNameOff
defer func() {
color.TestNameOn, color.TestNameOff = colorTestNameOnSave, colorTestNameOffSave
}()
for _, flag := range []string{"on", ""} {
os.Setenv("TESTDEEP_COLOR", flag)
os.Setenv("MY_TEST_COLOR", "")
light, bold, off := color.FromEnv("MY_TEST_COLOR", "red")
test.EqualStr(t, light, "\x1b[0;31m")
test.EqualStr(t, bold, "\x1b[1;31m")
test.EqualStr(t, off, "\x1b[0m")
// on + override
os.Setenv("MY_TEST_COLOR", "green")
light, bold, off = color.FromEnv("MY_TEST_COLOR", "red")
test.EqualStr(t, light, "\x1b[0;32m")
test.EqualStr(t, bold, "\x1b[1;32m")
test.EqualStr(t, off, "\x1b[0m")
// on + override including background
os.Setenv("MY_TEST_COLOR", "green:magenta")
light, bold, off = color.FromEnv("MY_TEST_COLOR", "red")
test.EqualStr(t, light, "\x1b[0;32m\x1b[45m")
test.EqualStr(t, bold, "\x1b[1;32m\x1b[45m")
test.EqualStr(t, off, "\x1b[0m")
// on + override including background only
os.Setenv("MY_TEST_COLOR", ":magenta")
light, bold, off = color.FromEnv("MY_TEST_COLOR", "red")
test.EqualStr(t, light, "\x1b[45m")
test.EqualStr(t, bold, "\x1b[45m")
test.EqualStr(t, off, "\x1b[0m")
// on + bad colors
os.Setenv("MY_TEST_COLOR", "foo:bar")
light, bold, off = color.FromEnv("MY_TEST_COLOR", "red")
test.EqualStr(t, light, "\x1b[0;31m") // red
test.EqualStr(t, bold, "\x1b[1;31m") // bold red
test.EqualStr(t, off, "\x1b[0m")
// Color test name
_, color.TestNameOn, color.TestNameOff = color.FromEnv(color.EnvColorTitle, "yellow")
var b strings.Builder
color.AppendTestNameOn(&b)
test.EqualStr(t, b.String(), "\x1b[1;33m")
color.AppendTestNameOff(&b)
test.EqualStr(t, b.String(), "\x1b[1;33m\x1b[0m")
}
}
func TestSaveState(t *testing.T) {
check := func(expected string) {
t.Helper()
test.EqualStr(t, os.Getenv("TESTDEEP_COLOR"), expected)
}
defer color.SaveState()()
check("off")
func() {
defer color.SaveState(true)()
check("on")
}()
check("off")
func() {
defer color.SaveState(false)()
check("off")
}()
check("off")
os.Unsetenv("TESTDEEP_COLOR")
checkDoesNotExist := func() {
t.Helper()
_, exists := os.LookupEnv("TESTDEEP_COLOR")
test.IsFalse(t, exists)
}
func() {
defer color.SaveState(true)()
check("on")
}()
checkDoesNotExist()
func() {
defer color.SaveState(false)()
check("off")
}()
checkDoesNotExist()
}
func TestBad(t *testing.T) {
defer color.SaveState()()
test.EqualStr(t, color.Bad("test"), "test")
test.EqualStr(t, color.Bad("test %d", 123), "test 123")
}
func TestBadUsage(t *testing.T) {
defer color.SaveState()()
test.EqualStr(t,
color.BadUsage("Zzz(STRING)", nil, 1, true),
"usage: Zzz(STRING), but received nil as 1st parameter")
test.EqualStr(t,
color.BadUsage("Zzz(STRING)", 42, 1, true),
"usage: Zzz(STRING), but received int as 1st parameter")
test.EqualStr(t,
color.BadUsage("Zzz(STRING)", []int{}, 1, true),
"usage: Zzz(STRING), but received []int (slice) as 1st parameter")
test.EqualStr(t,
color.BadUsage("Zzz(STRING)", []int{}, 1, false),
"usage: Zzz(STRING), but received []int as 1st parameter")
test.EqualStr(t,
color.BadUsage("Zzz(STRING)", nil, 1, true),
"usage: Zzz(STRING), but received nil as 1st parameter")
test.EqualStr(t,
color.BadUsage("Zzz(STRING)", nil, 2, true),
"usage: Zzz(STRING), but received nil as 2nd parameter")
test.EqualStr(t,
color.BadUsage("Zzz(STRING)", nil, 3, true),
"usage: Zzz(STRING), but received nil as 3rd parameter")
test.EqualStr(t,
color.BadUsage("Zzz(STRING)", nil, 4, true),
"usage: Zzz(STRING), but received nil as 4th parameter")
}
func TestTooManyParams(t *testing.T) {
defer color.SaveState()()
test.EqualStr(t, color.TooManyParams("Zzz(PARAM)"),
"usage: Zzz(PARAM), too many parameters")
}
func TestUnBad(t *testing.T) {
defer color.SaveState(true)()
const mesg = "test"
s := color.Bad(mesg)
if s == mesg {
t.Errorf("Bad should produce colored output: %s ≠ %s", s, mesg)
}
test.EqualStr(t, color.UnBad(s), mesg)
}
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